Bring the stock to the boil, remove the casserole and pour the stock over it, reduce the oven temperature to 150ºC/300ºF/Gas1. To the casserole add the bay leaf, thyme and rosemary then layer the onion, carrot, leek , tomatoes and finish with the potatoes on top.

Brush the potatoes with melted butter and season, bring the casserole to the boil on the hob then cover with the lid and place in the oven for 1½ hours or until the potatoes are cooked. When cooked, remove from the oven and again brush the potatoes with butter placing the dish under a preheated grill to brown, sprinkle with the parsley to serve.

Serve with  mixed baby vegetables.